Locomotive.



s. M. VAUGLAIN.

eooMo'z'r'v'x-z. APPLICATION FILED JULY 15, 1909.

Patentefi W15,

S. M. VAUGLAIN.

LOGOMOTIVE.

APPLICATION rum) JULY 15, 1909.

Patented Oct. 5, 3.909.v

3 SHEE-T8SHBBT 3.

1w amid UNITED s'rairss rnrnnr QFFICE.

SAMUEL M. VAUGLAIN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T BALDWINLOCOMOTIVE WORKS, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OFPENNSYLVANIA.

LOCOMGTIVE.

Specification of Letters Patent.

Patented Oct. 5, 1909.

Application filed July 15, 1903. Serial No. 507,740.

' ments in the forward ,frame and cylinders ited, owing to the fact thatthe ,main frame usually extendedifrom one end of the loco- "motivate theother and the cylinder was of a locomotive, especially of thearticulated compound type, in which two frames are pivoted together; therear frame carrying the one set of cylinders and the forward framecarrying the other set of cylinders. Heretofore, in locomotives of thistype, the size of the low pressure cylinder was limmade in a singlepiece with its saddlef By my invention I discontinue the main frame atthe rear of the forward cylinders. The invention can be applied to anordinary locomotive if desired.

The object of my invention is to increase the diameter of the cylinderswithout increasing the width of the lcomotive, and thisobject I attainby discontinuing the main frame and utilizing the intermediate framewhich supports the cylinders and the bumper and bumper frames, and alsoforms the steam passage to the said cylinders.

In the accompanyin drawings :--Figure '1,-is a side view of sufficientof the forward end of a locomotive to illustrate my invention; Fig. 2,is an end View looking in the direction of the arrow, Fig. 1; Fig.3, isa transverse sectional view on the line 83, Fig. 5; Fig. 4, is a planview of the cylinder and framework; theboiler being omitted; and Fig.5,'is a longitudinal sectional view on theline 55, Fig. 4.

In locomotives to which my inventi n is particularly adapted the forwardand rear frames are pivoted together and the boiler is rigidly mountedon the rear frame and overhangs the forward frame. The high a pressurecylinders are mounted, int-he present instance, on the forward end ofthe rear frame and co nected to the driving -axles mounted 111 boxes onthe said rear frame. The forward frame, inthis instance, carries the lowpressure cylinders which are forward frame and the steam connections arecarried from the boiler, first to the high pressure cylinders on therear frame, then to the lowpressure cylinders on the forward frame,either direct or through a re-hea'ter. This type of engine is known asan articulated compound engine and these engines have been graduallyincreasing in size, but the low pressure cylinders have to be limited indiameter owing to the fact that the builders are limited to a givenwidth.

.By my invention I am enabled to keep within the width prescribed andyet inconnectedto axles adapted to boxes in the crease the diameter ofthe cylinders without weakening the structure and without overhangingthe parts beyond the limit.

, A, A are two sidemembers of the main frame of the locomotive, B, B arethe low pressure cylinders, one situated on each side of the locomotiveas shown, and D' is an intermediate frame which is rigidlysecured to themain frames A, A and the bumper frame E carrying the bumper E, to whichis also firmly attached the two cylinders 13, B. The frame I) at thepoint between the cylinders is much narrower than the main frame A,consequentlythe cylinders can be set back nearer the center of'theengine than if the main frame was continued on past the cylinders. Thissetting back of the cylinders enables me to considerably increase thediameter of the cylinders without increasing the width of thelocomotive. The cylinders are not provided with saddles asin theordinary type, but 1111 3 flanges Z), I) which are firmly bolted toflanges d on the frame D, as illustrated in Figs. 3

and 4. The bumper frame E has a reduced portion 6. extending between thearms I),

and this bumper frame is bolted securely to these arms, as well as tothe body portion of the frame I), as clearly illustrated in Figs. 4i and5; keys e being used at the interlocking points. The bumper E can bemade of any type desired, either of metal, asshown,

or of wood.

The arms D of the frame D extend rear-.

mediate frame D; suitable webs and braces being used to strengthen theframe so that this portion of the locomotive will be as sub stantial asif the main frame extended the full length of the locomotive.

In some instance; I may make the intermediate frame D simply acontinuation of the main frame, but I prefer to utilize it also as ameans of forming communication between the steam supply pipe leadingfrom the high pressure cylinders. This enables me to increase thestrength of the frame and at the same time condense the parts so as tomake the forward portion of the engine less cumbersome than heretofore.

G is the boiler of the locomotive and G is the smoke box'section of theboiler.

F is a pipe for supplying steam to the low pressure cylinders and isconnected either directly with the high pressure cylinders or indirectlythrough a superheater.

The pipe F is connected to the rear end of the frame D and has aflexible section F which allows the forward frame of the locomotive tomove independently of the boiler.

In the frame D is a steam passage n which communicates with the pipe Fand with lateral pipes at leading to the valve chest 13 of the cylindersB, as illustrated in Fig. 3; the valves being omitted in this drawing toavoid confusion.

M is the exhaust pipe leading from the exhaust passages of the valvechamber B and communicating with a pipe M which enters the smoke box Gof the boiler. This pipe M has a flexible section M The valve mechanismand other parts illustrated in Fig. l, as well as the truck illustratedin Fig. 2, form no part of my present invention and, therefore, 1 havenot described them.

It will be seen by the above construction that I reduce the width of thesupporting frame of the locomotive. Thus I am enabled to increase thediameter of the cylinders Without increasing the width of the locomotiveand I utilize the intermediate frame as a passage for the steam enteringthe low pressure cylinders.

"WVhile my invention is shown especially adapted to the forward end ofan articulated locomotive, it may be a plied to the rear frame, or tothe frame of an ordinary locomotive where it is desired to use largecylin- 'dersor to set the cylinders closer to each other thanheretofore. a

I claim 1. The combination of-the main frame of a locomotive, anintermediate frame coupled th the main frame and less in width than themain frame, with cylinders secured to the intermediate frame.

2'. The combination ofthe main fi'ame of 'a locomotive, an intermediateframe less in width than the main frame, and cylinderssecured to theintermediate frame a point beyond the end of the main frame whereby thecylinders can be increased in diameter without increasing the width oftheilocomotive.

3. The combination of a main frame of a locomotive, an intermediateframe, a cylinder secured to each side of the intermediate frame beyondthe end of the main frame,

and a bumper frame secured to the forward end of the intermediate frame.

4. The combination of a main frame of a locomotive, an intermediateframe less in width than the main frame and having rearwardly extendingarms secured to the side members of the main frame, said intermediateframe having forward arms, a bumper frame mounted between said forwardarms and secured thereto, with a cylinder on each side of theintermediate frame beyond the end of the main frame and rigidly securedto said intermediate frame.

5. The combination of a main frame, an intermediate frame less in widththan the main frame, a cylinder secured to each side of the intermediateframe beyond the ends of the main frame, a steam passage in saidintermediate frame, and a pipe communicating with said passage, saidpassage also communicating with the steam chests of the cylinders.

6. The combination of the main frame of a locomotive, an intermediateframe less in width than the main frame and connected rigidly to themain frame and forming a continuation thereof, a cylinder securedrigidly to each side of the intermediate frame, a passage in theintermediate frame, a steam supply pipe leading to said passage, branchpipes connecting said passage-with the'valve chests of the cylinders,and a bumper casting secured to the forward end of the intermediateframe. i

7 The combination of the main frame of a locomotive having two sidemembers, each side member being recessed, an intermediate frame havingrearwardly projecting arms adapted to the recesses in the side membersof the main frame, means for rigidly securing the intermediate frame tothe side mem bers of the main frame, said intermediate frame being lessin width than the main frame, two cylinders having flanges, means forsecuring the flange of one cylinder to one side of the intermediateframe, means for securing the flange of the other cylinder to theopposite side of the intermediate frame, a bumper frame secured to theforward end of the intermediate frame, a steam passage in theintermediate frame, a flexible steam supply pipe communicating with saidsteam passage in the intermediate frame, steam branch pipes formingcommunication be tween the steam space and the steam chests ofthe-cylinders, an exhaust pipe communieating with both steam chests, anda flexible ipe connected to theexhaust pipe and leadmg to the steamnozzle within the boiler.

8. The combination of the main frame of a'locomotive having two sidemembers, each member belng recessed at the lnner s1de,.an

intermediate frame, cylinders carried thereby and having arms'adapted tothe recess, wedges between the two parts, and means 'for securing saidparts together.

ing recessed and the intermediate frame having portions adapted to therecesses, wedges between the main frame and the intermediate frame,bolts securing the frames together, a bumper frame, means for securing20 the said bumper frame to the intermediate frame, and Wedges betweenthe bumper frame and the intermediate frame.

In testimony whereof, I have signed my name to'this specification, inthe presence of 2 two subscribing Witnesses.

SAMUEL M. VAUCLAIN.

Witnesses:

LEWIS W. Me'rzenn, H. V. WILLE.

